68021
domain: N
Appears in sequences
- Brilliant numbers such that when they are concatenated with their 10's complement, which also must be brilliant, the result is a prime.at n=8A084629
- Number of permutations of length n which avoid the patterns 231, 12345.at n=16A116844
- Sequence of pairwise relatively prime numbers of class P_8 (see comment in A275246).at n=28A275253
- Number of distinct variances of nonempty subsets of {1, ..., n}.at n=29A382383